I am using a DHT11 sensor attached to a NodeMCU ESP8266 to have a web server reporting the local humidity and temperature values. I don't have a resistor attached in the circuit, the DHT11 is directly connected to the NodeMCU board. Till yesterday, the setup was giving me correct values, but from today morning, I am getting all nulls from the sensor. Does this mean that the sensor is dead? Should I have had a resistor attached to the circuit to prevent this, or does that not make any difference?
Please consider my question before negative voting me. I considered this question:
I have followed the circuit diagram as given in the following page:
It's just that I am using a NodeMCU istead of an Arduino. Does that make my question unworthy of posting here? The problem is similar.